Question 1

Every cell in the human body, both male and female, contains 46 chromosomes.

Accepted Answer

A) True 
 B)False

Question 2

Which is a simple cartoon of a chromosome used to show the overall physical structure of a chromosome?

Accepted Answer

A) Genome 
B) Transcriptome 
C) Ideogram 
D) Karyotype 
A) Genome 
B) Transcriptome 
C) Ideogram 
D) Karyotype

Question 3

A DNA molecule is a:

Accepted Answer

A) gene. 
B) chromosome. 
C) genome. 
D) gamete. 
A) gene. 
B) chromosome. 
C) genome. 
D) gamete.

Question 4

Because the Y chromosome is smaller than the X chromosome, geneticists have found that only about 25% of the clinically significant sex-linked traits are found on the Y chromosome.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements is(are) true regarding Tay-Sachs disease?

Accepted Answer

A) Tay-Sachs disease results in the failure to make an essential lipid-processing enzyme. 
B) This disease is most prevalent in Jewish populations. 
C) This disease results in severe retardation and death by age 4. 
D) All of the above are true regarding Tay-Sachs disease. 
A) Tay-Sachs disease results in the failure to make an essential lipid-processing enzyme. 
B) This disease is most prevalent in Jewish populations. 
C) This disease results in severe retardation and death by age 4. 
D) All of the above are true regarding Tay-Sachs disease.

Question 6

DNA molecules are segments of a gene.

Accepted Answer

A) True 
 B)False

Question 7

The hypothesis regarding tumor suppressor genes states that these genes:

Accepted Answer

A) can transform a cell into a cancer cell only when certain environmental conditions occur. 
B) regulate cell division so that it proceeds normally. 
C) govern the cell's ability to repair damaged DNA. 
D) Both A and C are correct. 
A) can transform a cell into a cancer cell only when certain environmental conditions occur. 
B) regulate cell division so that it proceeds normally. 
C) govern the cell's ability to repair damaged DNA. 
D) Both A and C are correct.

Question 8

The chromosome with the fewest number of genes is carried by about only half the population.

Accepted Answer

A) True 
 B)False

Question 9

The principle of independent assortment states that each gamete formed is likely to have the same set of 23 chromosomes.

Accepted Answer

A) True 
 B)False

Question 10

Both males and females have an X chromosome.

Accepted Answer

A) True 
 B)False

Question 11

Match each of the terms with its corresponding definition.
-Nonsexual trait carried on sex chromosomes

Accepted Answer

A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics 
A) Recessive 
B) Codominance 
C) Monosomy 
D) Autosome 
E) Karyotype
F)Sex-linked trait
G)Dominant
H)Trisomy
I)Punnett square
J)Genome
K)Sex chromosome
L)Heterozygous
M)Homozygous
N)Genetics

Question 12

If an individual has only an X chromosome ("XO"), then that person is genetically:

Accepted Answer

A) male. 
B) female. 
C) neither male nor female. 
D) The condition of "XO" can never occur. 
A) male. 
B) female. 
C) neither male nor female. 
D) The condition of "XO" can never occur.

Question 13

Match each condition with its corresponding statement or definition.
-Nervous disorder characterized by involuntary trembling and muscle rigidity

Accepted Answer

A) Down syndrome 
B) Huntington disease 
C) Klinefelter syndrome deficiency 
D) Multiple neurofibromatosis 
E) Parkinson disease
F)Retinitis pigmentosa
G)Severe combined immune deficiency
H)Tay-Sachs disease 
A) Down syndrome 
B) Huntington disease 
C) Klinefelter syndrome deficiency 
D) Multiple neurofibromatosis 
E) Parkinson disease
F)Retinitis pigmentosa
G)Severe combined immune deficiency
H)Tay-Sachs disease

Question 14

Match each term with its corresponding definition or description.
-Simple cartoon of a chromosome

Accepted Answer

A) Proteome 
B) Ideogram 
C) Genome 
D) Genomics 
E) P-arm
F)Proteomics
G)Q-arm 
A) Proteome 
B) Ideogram 
C) Genome 
D) Genomics 
E) P-arm
F)Proteomics
G)Q-arm

Question 15

The shorter segment of a chromosome is called the:

Accepted Answer

A) centromere. 
B) s-arm. 
C) p-arm. 
D) q-arm. 
A) centromere. 
B) s-arm. 
C) p-arm. 
D) q-arm.

Question 16

Because of our greater complexity, the human genome carries about eight times as many genes as the fruit fly does.

Accepted Answer

A) True 
 B)False

Question 17

There are 44 autosomes in most human cells.

Accepted Answer

A) True 
 B)False

Question 18

The manner in which the genotype is expressed is called the phenotype.

Accepted Answer

A) True 
 B)False

Question 19

The term pedigree refers to the entire collection of genetic material in each typical cell of the human body.

Accepted Answer

A) True 
 B)False

Question 20

The genetic code is transmitted to offspring in discrete, independent units that are called:

Accepted Answer

A) chromosomes. 
B) genes. 
C) gametes. 
D) nucleosomes. 
A) chromosomes. 
B) genes. 
C) gametes. 
D) nucleosomes.

Exam 48: Genetics and Heredity

Every cell in the human body, both male and female, contains 46 chromosomes.

Which is a simple cartoon of a chromosome used to show the overall physical structure of a chromosome?

A DNA molecule is a:

Because the Y chromosome is smaller than the X chromosome, geneticists have found that only about 25% of the clinically significant sex-linked traits are found on the Y chromosome.

Which of the following statements is(are) true regarding Tay-Sachs disease?

DNA molecules are segments of a gene.

The hypothesis regarding tumor suppressor genes states that these genes:

The chromosome with the fewest number of genes is carried by about only half the population.

The principle of independent assortment states that each gamete formed is likely to have the same set of 23 chromosomes.

Both males and females have an X chromosome.

Match each of the terms with its corresponding definition. -Nonsexual trait carried on sex chromosomes

If an individual has only an X chromosome ("XO"), then that person is genetically:

Match each condition with its corresponding statement or definition. -Nervous disorder characterized by involuntary trembling and muscle rigidity

Match each term with its corresponding definition or description. -Simple cartoon of a chromosome

The shorter segment of a chromosome is called the:

Because of our greater complexity, the human genome carries about eight times as many genes as the fruit fly does.

There are 44 autosomes in most human cells.

The manner in which the genotype is expressed is called the phenotype.

The term pedigree refers to the entire collection of genetic material in each typical cell of the human body.

The genetic code is transmitted to offspring in discrete, independent units that are called:

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

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